Welt-guide for sewing-machines.



No. 677,492. Patented July 2, I91. C. H. ALLEN.

WELT GUIDE FOR SEWING MACHINES.

(Application filed Sept. 10, 1900.) (80 Model.)

' "UNITED STATES PATENT OFFICE.

CHARLES H. ALLEN, OF MARLBORO, MASSACHUSETTS.

WELT-=GUIDE FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 677,492, dated July 2, 1901 Application filed September 10, 1900. Serial No. 29,530. (No model.)

To aZZ whom it may concern.-

Be it known that I, CHARLES H. ALLEN, of Marlboro, county of Middlesex, State of Massachusetts, have invented an Improvement in felt-Guide Attachments for Sewing-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like numerals on the drawings representing like parts.

This invention relates to sewing-machines; and the object of the invention is to provide an improved mechanism for insuring the proper relation between the line of stitching and the edge of the work, even Where one of the parts of the latter varies in width, and said mechanism is especially adapted for use in applying the welt to a shoe-sole.

The invention is shown in one simple embodiment in the accompanying drawings, wherein- Figure 1 is a side elevation of the presserfoot and throat-plate of a sewing-machine of ordinary kind having my improved attachment combined therewith. Fig. 2 is a front view of the presser-foot and one portion of the welt-guide supported thereby. Fig. 3 is a plan view of the same. Fig. 4 is a similar view of the throat-plate. Fig. 5 is a side elevation of the same as seen from the right in Fig. 4. Fig. 6 is a transverse section in the line 6 6, Fig. 1, looking toward the left, the parts in the rear being omitted for the sake of clearness; and Fig. 7 is a partial section on the line 7, Fig. 2.

The improved machine is adapted to all kinds of work, but is particularly advantageous in shoework, in which connection it is adapted to guide the welt in such manner that the latterrmay be stitched to the sole and the line of stitching be maintained parallel to the outer edge of the sole notwithstanding variations in width of said welt; and said improved inachine involves in its organization a welt-guide having two members, one of which is yieldable relatively to the other, said yieldable member being adapted to recede upon any increase in width of the welt passing between the members of the guide. One

of the members in the present instance is spring-controlled, and for compactness it is supported by the presser-foot of the machine.

In Fig. 1 I have shown in working relation the presser-foot and throat-plate of a sewingmachine of known construction, saidparts being denoted, respectively, by 12 and 13. The presser-foot 12 has an angular upward extension, as 14, which supports the yieldable member of the welt-guide, as hereinafter described, and being so disposed the welt-guide will receive the welt without interfering with the work or with the operators Vision.

I have indicated by the arrow in Fig. 1 the direction of movement of the welt, the latter being usually in the form of a strip received from a suitable source of supply. (Not illustrated.)

As previously stated, the improved machine includes a welt-guide comprising two. members, one of which is yieldable relatively to the other, and said yieldable member is supported in the present case by the angular upward extension 14 of the presser-foot 12, and while said yieldable member may be of any suitable kind it is represented as consisting of a hook-shaped device 15, the shank or body of which is set and retained in any suitable way in a groove, as 16, extending entirely across the under side of the angular extension. From this it will be understood that the guide member 15 can have a sliding movement transversely of the presser-foot.

The under side of the body of the hookshaped member '15, which is the yieldable member of the welt-guide, is flush with the under side of the'extension 14, by reason of which the free motion of the said member cannot be interfered with by that portion of the relatively fixed member of the guide which is disposed within the hook of the former.

In Fig. 2 the slidable member of the weltguide is shown as occupying its normal posi tion, Where it is held by a suitable spring, as 17, of angular shape, having a coil 17 at its elbow. One branch of the spring is bent around the shank of the screw 18, tapped into the extreme forward end of the upper side of the presser-foot, while theother branch passes through an aperture in the slida-ble member 15 of the welt-guide. The throatplate 13 supports upon its upper side a plate, as 19, the outer end 20 being straight and constituting a guide or gage, against which the outer edge of the sole is placed While the welt is being stitched thereto.

which receive screws, as 22, in threaded engagement with the throat-plate 13. ing the plate 19 back and forth the stitches may be made nearer the edge of the sole at A the shank than they are along the remainder of the sole, as is the custom. To operate said plate 19, I have illustrated a lever 23, pivoted at 24 to the inner under side of said plate and fulcrumed, as at 25, to the throat- The relatively fixed member of the E welt-guide is sustained by the adjustable plate 13.

plate 19, as it is necessary that said fixed guide member should change in position as the plate 19 is adjusted in order that the stitching may follow the correct line at the shank of the sole. The relatively fixed member of the welt-guide is denoted by 26, the

body thereof being suitably secured, as by screws 27, to the adjustable sole-guide plate 7 19. Said member 26 consists, preferably, of a fiat spring having a long body or shank provided at its free end with a transverse tween the parts.

The welt is fed through the hooked por-[ tion of the member 15 and between the closed outer end of the hook and the straight inner edge of the working portion 27 of the guide 5 member 26, and when there is any increase in width in the welt such widened port-ion} will strike against said outer closed end of the hook and will force the member 15 to what is illustrated as the left, so as not to throw the welt out of true line.

member 26 is deflected outward, as at 28, in

order to guide the welt between the straight I edges of the two parts of the guide.

Having fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A work-guide for sewing-machine's comprising two members, one of which is hookshaped to receive the working portion of the other, means for attaching one of said members to the throat-plate, and means for slidin'gly supporting the other of said members on the presser-foot.

2. A work-guide for sewing-machines comprising a fixed member and a hook-shaped member, the hook thereof embracing the The plate 19 has longitudinal slots 21 lengthwise thereof,

By movworking portion of the fixedmember, means I for slidingly supporting the shank of the hook-shaped member on the presser-foot, and

means to support the fixed member on the throat-plate.

3. A work-guide for sewing-machines consisting of two members one of which is hookshaped to receive the working portion of the other one, in combination with a presser-foot to slidingly support one of said members, and

a spring connected respectively with the presser-foot and the member which it supports.

4. The combination with a throat-plate, of an adj ustably-mounted sole-guide supported by the throat-plate, a welt-guide consisting of two members one of which is yieldingly mounted, and the other of which is connected with said adj ustably-mounted sole-guide.

5. T hecombin ation with a throat-plate, andwith a presser-foot, of a slide supported by the presser-foot, a spring connected respectively with the slide and the presser-foot, said slide constituting an adjustable member of a welt-guide,'a second and relatively fixed member yield'inglyconnected with the throat-plate to cooperate with said slide.

6 A welt-guide for sewing ma-chines coinprising relatively fixed and movable mem- I sewing-machine having an upturned portion, of a work-guide, comprising a hook-shaped member slidably supportedon said presser= foot, and a fixed member having a guiding edge which is embraced by said hook-shaped member. The free end of the working part 27 of the 'on'the presser-foot, and means for attaching the other to said sole-guide with the working face thereof parallel to the working edge of the'said sole-guide.

In testimony whereof I have signed name to this specification in the presence of two subscribing witnesses.

CHARLES H. ALLEN.

\Vitnesses:

EDWARD R. CoL-LINs, WILLIAM M. HAMILTON; 

